Finding a reliable 4919951 cylinder liner is critical for maintaining the high-performance standards of the QSB6.7 diesel engine series. Whether you are conducting a routine maintenance check or a complete engine rebuild, selecting an OEM standard replacement ensures long-term durability and prevents premature engine failure. As a specialized engine parts supplier, we provide the 4919951 (also searched as 4919951) liner designed specifically for demanding industrial and construction applications.
| Detail Field | Specifications Info |
|---|---|
| Model NO. | QSB6.7 / QSB Series |
| Product Name | Engine Cylinder Liner |
| Part Number | 4919951 |
| Type | Dry Cylinder Liner / Wet Sleeve depending on block config |
| Condition | Brand New, OEM Standard Replacement |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch |
| Application | Engine rebuild, overhaul, maintenance for Excavators, Loaders, Power Gen |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL Fedex EMS UPS or by Air/ Sea |
When sourcing engine components, the difference between a high-precision part and a generic one can mean thousands of dollars in repair costs. Here is why procurement managers prefer our 4919951 liners.
| Purchase Focus | Our OEM-Standard 4919951 | Generic Aftermarket Options |
|---|---|---|
| Material Composition | High-strength alloy cast iron for heat dissipation | Standard grey iron (prone to cracking) |
| Precision Machining | Micron-level tolerance for QSB6.7 piston fit | Variable tolerances leading to oil consumption |
| Surface Treatment | Cross-hatch honing for optimal lubrication | Rough finishing increasing friction |
| Service Life | Designed for 10,000+ operational hours | Unpredictable lifespan under heavy load |
| Installation Fit | 100% Match with Part Number 4919951 | May require manual adjustments |
| Certification | Factory tested for pressure resistance | Often lacks material certification |
This 4919951 liner is widely used across various heavy-duty machinery equipped with the QSB 6.7 liter engine. Below is a list of common applications:
| Equipment Type | Compatible Engine Models |
|---|---|
| Excavators | QSB6.7-C130, QSB6.7-C150, QSB6.7-C170 |
| Wheel Loaders | QSB6.7-C190, QSB6.7-C220 |
| Industrial Power Units | QSB6.7 Tier 3 / Stage IIIA |
| Agricultural Tractors | QSB6.7-T3 Series |
Engine vibration, excessive smoke, or coolant loss? These are often signs of liner wear. Our team helps operators:
Identify potential risks during maintenance to avoid catastrophic engine failure.
Recommend suitable replacement parts if needed, ensuring compatibility with your serial number.
Support both inspection advice and parts supply for a one-stop repair solution.
Pitting, or cavitation, is often caused by liner vibration during the combustion cycle. Using a high-quality 4919951 liner with proper wall thickness and maintaining your coolant additives can prevent this erosion.
During an overhaul, if you notice vertical scoring, glazing that cannot be honed, or visible cracks, immediate replacement is required to maintain compression levels and prevent oil blow-by.
Our 4919951 features an OEM-standard tri-metal structure. It is trusted by repair shops and equipment fleets globally for its consistent performance in harsh environments.
Contact our sales team today for current stock levels and bulk pricing on Part Number 4919951.
Email: [email protected]
Follow our Facebook Page for Daily UpdatesWe are a leading provider of engine assemblies and spare parts for world-renowned brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our core focus is on high-precision internal engine components including:
Cylinder Liner Engine Piston Kit Piston Ring Set Main Bearing Shell Con Rod Bearing Thrust Washer Full Overhaul Gasket Kit Diesel Fuel Injection Pump Fuel Injector Nozzle Engine Crankshaft Turbocharger Assembly Water Pump Replacement Oil Pump Assembly Engine Cylinder Block Cylinder Head Assembly Connecting Rod Heavy Duty Engine Overhaul Construction Machinery Spare Parts Excavator Engine Maintenance Diesel Engine Parts WholesaleWe specialize in long-tail search terms such as QSB6.7 engine rebuild kits, Caterpillar liner replacement cost, Komatsu engine gasket suppliers, and high-performance diesel liners 4919951 to help our clients find exactly what their fleet needs.
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